Paper Abstract and Keywords |
Presentation |
2022-06-10 13:25
Decoding Complexity Reduction of Forward Error Correction by Channel-polarized Multilevel Coding Takeshi Kakizaki, Masanori Nakamura, Fukutaro Hamaoka, Yoshiaki Kisaka (NTT) OCS2022-11 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In a digital coherent optical communication system, it is necessary to design a forward error correction (FEC) and modulation format according to the transmission distance, data rate, and power consumption requirement. Since binary codes are applied to multilevel modulation, the bit-interleaved coded modulation (BICM), which can apply one FEC code to various modulation formats, and multilevel coding, which can reduce the decoding complexity without depending on the FEC code, are used. As a new binary code, we proposed channel-polarized multilevel coding (CP-MLC), which convert the original channel into multiple channels with non-uniform capacities by channel polarization, and only applies soft-decision FEC (SD-FEC) to the unreliable channel. By combining the proposed CP-MLC apply to the FEC code of BICM, it is possible to reduce the decoding complexity without depending on the modulation format, and the code, which is an advantage of MLC. Since the proposed CP-MLC is a binary code, it can also be applied to probabilistically-shaped quadrature amplitude modulation (PS-QAM) that improves noise tolerance by using probabilistic constellation shaping. We show that it is possible to reduce the decoding complexity in QAM and PS-QAM by numerical simulation. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
forward error correction / coded modulation / digital coherent optical systems / error correction codes / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 122, no. 70, OCS2022-11, pp. 6-11, June 2022. |
Paper # |
OCS2022-11 |
Date of Issue |
2022-06-03 (OCS) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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OCS2022-11 |
Conference Information |
Committee |
OCS PN NS |
Conference Date |
2022-06-10 - 2022-06-10 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
OCS |
Conference Code |
2022-06-OCS-PN-NS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Decoding Complexity Reduction of Forward Error Correction by Channel-polarized Multilevel Coding |
Sub Title (in English) |
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Keyword(1) |
forward error correction |
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coded modulation |
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digital coherent optical systems |
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error correction codes |
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1st Author's Name |
Takeshi Kakizaki |
1st Author's Affiliation |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) |
2nd Author's Name |
Masanori Nakamura |
2nd Author's Affiliation |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) |
3rd Author's Name |
Fukutaro Hamaoka |
3rd Author's Affiliation |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) |
4th Author's Name |
Yoshiaki Kisaka |
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NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) |
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Speaker |
Author-1 |
Date Time |
2022-06-10 13:25:00 |
Presentation Time |
25 minutes |
Registration for |
OCS |
Paper # |
OCS2022-11 |
Volume (vol) |
vol.122 |
Number (no) |
no.70 |
Page |
pp.6-11 |
#Pages |
6 |
Date of Issue |
2022-06-03 (OCS) |
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